There is footage of Byron Saxton handing something to Roman Reigns on Monday’s episode of RAW right before Triple H smashed Reigns’ face into the announce table several times. Once Triple H stopped, Reigns was bleeding from his nose.
There is online speculation that Saxton gave Reigns a blood capsule or a blade.
https://twitter.com/DeathToAllMarks/status/702030319168397312
It should be noted that when WWE went PG in 2008, a no blood policy was put it in place. WWE also looks down on their talent blading and have fined talents that have done so in the past. It appears that it was a blood capsule since WWE officials told Saxton to give it Reigns.